mouseevent

问题 This question is somehow related to one other I posted before. The reason I'm making a new question is because I changed things a bit and haven't been able to deal with a litte issue since then. So, I have this simple horizontal slideshow. I have a left and right button to control it (besides the ability to directly click on the slides). Basically I want my buttons to deactivate themselves when the slideshow reaches it's left/right end and reactivate when they are nedded again. I've tried

问题 In Delphi XE2, how can I detect if the user clicked a popup menu item with the left or with the right mouse button? 回答1: Use this unit, install it as a component and replace the standard TPopupMenu which adds an OnMenuRightClick event. unit RCPopupMenu; interface uses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, Menus; type TMenuRightClickEvent = procedure (Sender: TObject; Item: TMenuItem) of object; TRCPopupList = class(TPopupList) protected procedure WndProc

问题 I'm building an hybrid app that requires a google map and since I'm working with angular it's easier for me to use ng-map. I'm having some problems with the on-click event of the marker <marker position="{{m.center}}" ng-repeat="m in markers" on-click="selectRequest(m)" icon="images/marker-{{m.status}}.png"></marker> It works fine on desktop with the mouse but not with touch events on mobile phone. Why ? 回答1: Thanks to SSH comments above I accomplished this: $scope.requests.forEach(function

问题 I'm having a little scenario here that maybe a duplicate. I have JTable where i show some data, i have a mouselistener that listens for right clicks on the table and displays a popup menu with one menuitem. My goal is that when the user clicks the menuitem, i get the values from the table and feed them into a custom dialog which has some fill in fields, so that the user doesn't have to feed the whole dialog by hand since i will feed the dialog with the values selected on the table. but my

问题 After a sleepness night I discovered something about this question which I think is fundamentally mind boggling, at least to me. Mouse coordinates ARE NOT PRECISE (I guess at a high speed of processing where the whole canvas has to be recreated when movement occurs) as in my codes above. I have tested this code piece by piece and discovered that the problem is not in my loop, but in the precision of if ((newMouseX !== mouseX) && (newMouseY !== mouseY)). If you tested this part of code by

问题 Using the mouse, I let the user to draw random curves on a Tkinter Canvas. These curves are drawn as short lines between points over which the mouse moves. My aim is to save the points used to draw the lines on the Canvas and to draw the same curves using the same points on a simple OpenCV window. The drawing on the Canvas works perfectly, however, wherever I place the OpenCV window I never succeed to fulfill my goal. I think the problem may be in a wrong functions call order? from Tkinter

问题 im trying to overwrite mouseClicked function of MouseAdapter then i can use it in my program as follow: import java.awt.Component; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.Reader; import java.net.URL; import java.net.URLConnection; import javax.swing.JFrame; import javax.xml.parsers.ParserConfigurationException; import org.lobobrowser.html.HtmlRendererContext;

问题 I am working on a simple game and with small circle "systems". I would like to be able to click each system so that I can do more with it later in game but I am having difficulty recognizing only a single click. I pass the randomly generated coords to a dictionary and then the collision for each rect should be checked with the mouse position but for some reason that is not working anymore. Any help is appreciated. Here is some of the more relevent code. for i in range(NumSystems): SysSize =

问题 I've put this code inside the div: onclick="this.style.border='solid 1px red';" How to insert multiple onclick events which would trigger changes of border colors - for example 1st click - red, 2nd click - blue, 3rd click - reset? This is exactly what I need - changes of the one particular div with multiple onclick events, not improvisations with multiple divs. edit: I also have other actions called with onclick + I have onmouseenter and onmouseleave events inside of the same div. Everything

问题 My question has been alluded to in java draw line as the mouse is moved, however, I have not advanced far enough into this book to have covered JPanels, JFrames and Points as stated by the prior programmer who asked this question. Answering this question definitely would help most beginner programmers better understand the graphics class and drawing, an often intricate process, especially for beginners. According to the text I am using (as I am learning Java on my own), this was the example